Application of Composite Biogas Tank in Anaerobic Co-digestion Faecal Sludge and Organic Waste

2019 ◽  
pp. 517-526
Author(s):  
Le Phuong Hoang ◽  
Kim Thai Nguyen
Keyword(s):  
Organic Waste ◽  
Faecal Sludge

An optimal feeding strategy for black soldier fly larvae biomass production and faecal sludge reduction

2019 ◽  
Vol 5 (3) ◽  
pp. 201-213 ◽  
Author(s):  
E.M. Nyakeri ◽  
M.A. Ayieko ◽  
F.A. Amimo ◽  
H. Salum ◽  
H.J.O. Ogola
Keyword(s):  
Larval Development ◽  
Biomass Production ◽  
Development Time ◽  
Organic Waste ◽  
Feeding Strategy ◽  
Organic Substrates ◽  
Black Soldier Fly ◽  
Organic Fertiliser ◽  
Wide Range ◽  
Faecal Sludge

The dual roles of efficient degradation and bioconversion of a wide range of organic wastes into valuable animal protein and organic fertiliser, has led to increased interest in black soldier fly (BSF) technology as a highly promising tool for sustainable waste management and alternative protein production. The current study investigated the potential application of BSF technology in the valorisation of faecal sludge (FS), a common organic waste in the urban informal settlements in low and middle-income countries. We evaluated the effect of different feeding rates (100, 150, 200 and 250 mg/larva/day), different feeding regimen and supplementation with other waste feedstock (food remains, FR; brewers waste, BW; and banana peelings, BP) on BSF larvae (BSFL) growth rates/yield and FS reduction efficiency. Results showed significantly (P<0.01) higher prepupal yield (179±3.3 and 190±1.2 g) and shorter larval development time (16.7 and 15 days) when reared on 200 and 250 mg/larva/day FS, respectively. However, different feeding regimes of FS did not significantly affect larval growth rate and prepupal yield (P=0.56). Supplementation of FS with other organic substrates resulted in significantly increased BSFL biomass production and substrate reduction, and shortened larval development time; with the effect was more pronounced when FS was supplemented with FR and at 30% supplementation. Protein:fat ratios for BSFL reared on FS, FS:FR, FS:BW were significantly (P<0.05) higher (2.51, 2.53, and 2.44, respectively) compared to FS:BP mixture (1.99). These results demonstrated that supplementation of FS with locally available organic waste can be used to improve its suitability as feedstock for BSF production and organic waste bioremediation from the environment. In conclusion, a daily feeding strategy of substrate containing FS supplemented with 30% organic waste co-substrate at feeding rate of 200 mg/larva/day can be used as a guideline for BSFL mass production and bioremediation of FS both at small- and large-scale level.

Removal of nutrients from Organic Liquid Agricultural Waste using filamentous algae.

2020 ◽  
Author(s):  
Gonzalo Flores-Morales ◽  
Mónica Díaz ◽  
Patricia Arancibia-Avila ◽  
Michelle Muñoz-Carrasco ◽  
Pamela Jara-Zapata ◽  
...  
Keyword(s):  
Organic Waste ◽  
Low Cost ◽  
Organic Liquid ◽  
Agricultural Waste ◽  
Filamentous Algae ◽  
Tertiary Treatment ◽  
Nutrient Reduction ◽  
Algae Removal ◽  
Algae Growth ◽  
Waste Effluents

Abstract A feasibility analysis of tertiary treatment for Organic Liquid Agricultural Waste is presented using filamentous algae belonging to the genus Cladophora sp. as an alternative to chemical tertiary treatment. The main advantages of tertiary treatments that use biological systems are the low cost investment and the minimal dependence on environmental variables. In this work we demonstrate that filamentous algae reduces the nutrient load of nitrate (circa 75%) and phosphate (circa 86%) from the organic waste effluents coming from dairy farms after nine days of culture, with the added advantage being that after the treatment period, algae removal can be achieved by simple procedures. Currently, the organic wastewater is discarded into fields and local streams. However, the algae can acquire value as a by-product since it has various uses as compost, cellulose, and biogas. A disadvantage of this system is that clean water must be used to achieve enough water transparency to allow algae growth. Even so, the nutrient reduction system of the organic effluents proposed is friendly to the ecosystem, compared to tertiary treatments that use chemicals to precipitate and collect nutrients such as nitrates and phosphates.

Highly-efficient Anaerobic Digestion of Refractory Organic Waste Using Subcritical Water Hydrolysis as Pretreatment Process

2012 ◽  
Vol 48 (1) ◽  
pp. 23-27
Author(s):  
TOMONAO MIYASHIRO ◽  
QINGHONG WANG ◽  
YINGNAN YANG ◽  
KAZUYA SHIMIZU ◽  
NORIO SUGIURA ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Organic Waste ◽  
Subcritical Water ◽  
Highly Efficient ◽  
Water Hydrolysis ◽  
Subcritical Water Hydrolysis

EVALUATION OF BIOMETHANE YIELDS FROM HIGH-ENERGY ORGANIC WASTE AND SEWAGE SLUDGE: A PILOT STUDY FOR A WASTEWATER TREATMENT PLANT

2019 ◽  
Vol 18 (9) ◽  
pp. 2023-2034 ◽  
Author(s):  
Agnieszka A. Pilarska ◽  
Krzysztof Pilarski ◽  
Boguslawa Waliszewska ◽  
Magdalena Zborowska ◽  
Kamil Witaszek ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Pilot Study ◽  
Sewage Sludge ◽  
Wastewater Treatment Plant ◽  
Organic Waste ◽  
Treatment Plant ◽  
High Energy

Ecological and hygienic assessment heat treatment of organic waste in a vacuum

2019 ◽  
Vol 22 (2) ◽  
pp. 13-16
Author(s):  
V.G. Tyrin ◽  
◽  
G.A. Mysova ◽  
K.N. Biryukov ◽  
N.N. Potemkina ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Organic Waste

KEGIATAN TEMATIK BERLANDASKAN TEKNOPRENEUR KOLABORASI DAN KEMANDIRIAN

2018 ◽  
Vol 1 (02) ◽  
Author(s):  
Anggia Cahyaningtyas
Keyword(s):  
Social Skills ◽  
University Students ◽  
Community Service ◽  
Organic Waste ◽  
Waste Utilization ◽  
Target Audience ◽  
Village Community ◽  
Service Activities ◽  
Service Activity

Kegiatan pengabdian pada masyarakat merupakan salah satu cara supaya mahasiswa Universitas Trilogi memiliki keterampilan bermasyarakat. Khalayak  sasaran  dari  pengabdian  ini  adalah  masyarakat RW 09 di  desa Ciasihan. Kegiatan pengabdian  telah  dilaksanakan  pada  tanggal  11 Agustus-11 September yang  bertempat  di desa Ciasihan Kecamatan Pamijahan Kabupaten Bogor, dengan diikuti oleh seluruh masyarakat RW 09. Dari  hasil  evaluasi  diperoleh  hasil  dan  manfaat  dari  kegiatan  pengabdian  ini diantaranya adalah meningkatkan motivasi masyarakat akan pentingnya koperasi, dan pentingnya akan pemanfaatan sampah organik  menjadi pupuk. Kegiatan pengabdian  ini  berjalan  dengan  lancar,  karena  berbagai  pendukung  terutama  partisipasi peserta yang cukup antusias dan berpartisipasi aktif dalam kegiatan pembentukan koperasi.. Tujuan  kegiatan  pengabdian  kepada  masyarakat  ini,  yang  dilaksanakan melalui kegiatan pembentukan koperasi adalah memotivasi masyarakat akan pentingnya koperasi, dan pentingnya akan pemanfaatan sampah organik  menjadi pupuk. Selain itu, Pengabdian Pada Masyarakat ini merupakan wahana bagi mahasiswa Universitas Trilogi untuk mengabdikan keilmuannya.Kata Kunci: Pembentukan Koperasi, Masyarakat RW 09Community service activities are one way for Trilogy University students to have social skills. The target audience of this service is the community of RW 09 in Ciasihan village. Community service activities were carried out on 11 August-11 September in Ciasihan Village, Pamijahan District, Bogor Regency, followed by all RW 09 people. From the results of the evaluation, the results and benefits of this service were obtained, including increasing community motivation for the importance of cooperatives, and the importance of using organic waste into fertilizer. This service activity went smoothly, due to various supporters, especially the participation of enthusiastic participants and actively participating in cooperative formation activities. The purpose of this community service activity, which was carried out through cooperative formation activities was to motivate the community on the importance of cooperatives, and the importance of waste utilization. organic into fertilizer. In addition, Community Service is a vehicle for Trilogy University students to devote their knowledge.Keywords: Formation of Cooperatives, Community RW 09

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